Southern Railway 5200, a USRA 2-10-2 Light Santa Fe.
(1922 Locomotive Cyclopedia of American Practice, Public domain, via Wikimedia Commons)
USRA LIGHT SANTA FE 2-10-2
The USRA Light Santa Fe was a USRA standard class of steam locomotive designed under the control of the United States Railroad Administration, the nationalized railroad system in the United States during World War I. These locomotives were of 2-10-2 wheel arrangement in the Whyte notation, or 1′E1′ in UIC classification; this arrangement was commonly named "Santa Fe" in the United States. At the time, the Santa Fe was the largest non-articulated type in common use, primarily in slow drag freight duty in ore or coal service.
A diagram of the 2-10-2 wheel arrangement, front of locomotive on left.
(Gwernol, Public domain, via Wikimedia Commons)
A total of 94 of these locomotives were constructed under the auspices of the USRA. They went to the following railroads:
Table of original USRA allocation
| Railroad | Notes | |||
|---|---|---|---|---|
| Ann Arbor Railroad | 4 | L | 190–193 | Built in 1919 by Baldwin (Renumbered 2550–2553, reclassified L2, Sold to Kansas City Southern Railway Nos. 220–223, September 1942. KCS class L-1. All scrapped between 1945-1957. |
| Chicago and Western Indiana Railroad | 5 | 20-24 | Built 1918 by ALCO. All scrapped between 1950-1955. | |
| Duluth, Missabe and Northern Railway | 10 | E-1 | 506–515 | Built 1919 by Brooks Works (to Duluth, Missabe and Iron Range Railroad same numbers). Scrapped between 1952-1954. One example preserved. |
| New York Central Railroad subsidiary Boston and Albany Railroad | 10 | Z-1 | 1100–1109 | Built 1919 by ALCO-Brooks (to Canadian National Railway Nos. 4200–4209 class T-3-a in 1928.) All scrapped between 1955-1961. |
| Seaboard Air Line Railroad | 15 | B-1 | 485–499 | Built 1919 by Baldwin (renumbered 2485–2499) All scrapped between 1950-1953. |
| Southern Railway | 50 | Ss-1 | 5200–5249 | Built 1918 by ALCO. All scrapped between 1949 - 1952. |
| Total | 94 |
Only one USRA Light 2-10-2 survives: DM&IR 506 is on display at the National Railroad Museum in Green Bay, Wisconsin.
USRA Light Santa Fe (2-10-2) diagram.
(1922 Locomotive Cyclopedia of American Practice, Public domain, via Wikimedia Commons)
Overview
Type and origin
Power type: Steam
Builder: American Locomotive Company, Baldwin Locomotive Works
Build date: 1918-1919
Total produced: 94
Specifications
Configuration:
• AAR 2-10-2
• UIC 1′E1′ h2
Gauge: 4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading diameter: 33 in (838 mm)
Driver diameter: 57 in (1,448 mm)
Trailing diameter: 43 in (1,092 mm)
Wheelbase: 40 ft 4 in (12.29 m)
Length: 52 ft 10 in (16.10 m) without tender
Width: 10 ft 8 in (3.25 m)
Height: 15 ft 0 in (4.57 m)
Adhesive weight: 276,000 lb (125,000 kilograms; 125 metric tons)
Locomotive weight: 352,000 lb (160,000 kilograms; 160 metric tons)
Tender weight: 188,300 lb (85,400 kilograms; 85.4 metric tons)
Total weight: 540,300 lb (245,100 kilograms; 245.1 metric tons)
Fuel type: Soft coal (bituminous)
Firebox: • Grate area: 76.3 sq ft (7.09 m2)
Boiler pressure: 200 psi (1.38 MPa)
Heating surface: 4,666 sq ft (433.5 m2)
• Tubes 2,970 sq ft (275.9 m2)
• Flues 1,323 sq ft (122.9 m2)
• Firebox 373 sq ft (34.7 m2)
Superheater: • Heating area 1,085 sq ft (100.8 m2)
Cylinders: Two
Cylinder size: 27 in × 32 in (686 mm × 813 mm)
Valve gear: Southern (see drawing)
Performance figures
Tractive effort: 69,600 lbf (309.6 kN)
Factor of adhesion: 3.95
Career
Preserved: 1
Scrapped: 1945-1961
Disposition: One preserved, remainder scrapped